Finish strong mode cleaning of dart2js.

pkg/compiler/testing_strong.json

 {
 "":"Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file",
 "":"for details. All rights reserved. Use of this source code is governed by a",
 "":"BSD-style license that can be found in the LICENSE.md file.",
 
   "packages": "../../.packages",
 
   "analyze": {
     "options": "analysis_options_strong.yaml",
 
     "uris": [
       ".",
       "../../tests/compiler/dart2js/"
     ],
 
     "exclude": [
-      "^pkg/compiler/lib/src/inferrer/builder\\.dart",
-      "^pkg/compiler/lib/src/inferrer/locals_handler\\.dart",
-      "^pkg/compiler/lib/src/inferrer/node_tracer\\.dart",
-      "^pkg/compiler/lib/src/inferrer/type_graph_dump\\.dart",
-      "^pkg/compiler/lib/src/inferrer/type_graph_nodes\\.dart",
-
-      "^pkg/compiler/lib/src/js_backend/backend_serialization\\.dart",
-      "^pkg/compiler/lib/src/js_backend/constant_system_javascript\\.dart",
-      "^pkg/compiler/lib/src/js_backend/enqueuer\\.dart",
-      "^pkg/compiler/lib/src/js_backend/mirrors_analysis\\.dart",
-      "^pkg/compiler/lib/src/js_backend/mirrors_data\\.dart",
-
-      "^pkg/compiler/lib/src/js_model/elements\\.dart",
-
-      "^pkg/compiler/lib/src/native/ssa\\.dart",
-
-      "^pkg/compiler/lib/src/resolution/constructors\\.dart",
-      "^pkg/compiler/lib/src/resolution/no_such_method_resolver\\.dart",
-      "^pkg/compiler/lib/src/resolution/type_resolver\\.dart",
-
-      "^pkg/compiler/lib/src/serialization/constant_serialization\\.dart",
-
-      "^pkg/compiler/lib/src/ssa/builder\\.dart",
-      "^pkg/compiler/lib/src/ssa/interceptor_simplifier\\.dart",
-      "^pkg/compiler/lib/src/ssa/locals_handler\\.dart",
-      "^pkg/compiler/lib/src/ssa/optimize\\.dart",
-      "^pkg/compiler/lib/src/ssa/type_builder\\.dart",
-      "^pkg/compiler/lib/src/ssa/value_range_analyzer\\.dart",
-      "^pkg/compiler/lib/src/ssa/variable_allocator\\.dart",
-
-      "^pkg/compiler/lib/src/js_emitter/[^/]*\\.dart",
-      "^pkg/compiler/lib/src/js_emitter/full_emitter/[^/]*\\.dart",
-      "^pkg/compiler/lib/src/js_emitter/lazy_emitter/[^/]*\\.dart",
-      "^pkg/compiler/lib/src/js_emitter/startup_emitter/[^/]*\\.dart",
-      "^pkg/compiler/lib/src/types/[^/]*\\.dart",
-      "^pkg/compiler/lib/src/universe/[^/]*\\.dart",
-
       "^tests/compiler/dart2js/analyze_api_test\\.dart",
       "^tests/compiler/dart2js/analyze_test_test\\.dart",
       "^tests/compiler/dart2js/bad_output_io_test\\.dart",
       "^tests/compiler/dart2js/boolified_operator_test\\.dart",
       "^tests/compiler/dart2js/codegen_helper\\.dart",
       "^tests/compiler/dart2js/constant_expression_evaluate_test\\.dart",
       "^tests/compiler/dart2js/constant_expression_test\\.dart",
       "^tests/compiler/dart2js/dart2js_batch2_test\\.dart",
       "^tests/compiler/dart2js/dart2js_batch_test\\.dart",
       "^tests/compiler/dart2js/dart2js_resolver_test\\.dart",
@@ skipping 122 matching lines @@
       "^tests/compiler/dart2js/source_map_name_test\\.dart",
       "^tests/compiler/dart2js/source_mapping_test\\.dart",
       "^tests/compiler/dart2js/type_combination_test\\.dart",
       "^tests/compiler/dart2js/type_inference7_test\\.dart",
       "^tests/compiler/dart2js/type_test_helper\\.dart",
 
       "^tests/compiler/dart2js/path with spaces/.*"
     ]
   }
 }